Diamond sower



Jan. 18, 1927. 1,614,502

W. P. THOMAS BOILER CLEANER Filed June 6, 1919 2 Sheets-She d. 1

auowwg Jan. 18,1927. 1,614,502

W. P. THOMAS BOILER CLEANER Filed June 6, 1919 2 Sheets-Sheet 2 W n M a Patented Jan. 18, 1927.

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01F F-ICE wILLIs P. THOMAS, onnn'rnomlvnornenn; nssre'rnongieY. MEsNE'AssIGn-Mmv'rs, TO DIAMOND rowan SPECIAL-TY- CQR-PORATION; or. nn'rnorr, MICHIGAN, A cons- EORATION OF MICHIGAN.

BOILER CLEANER.

Application filed June 6,

The invention relates to boiler cleaners andghas particular reference to a construction in which the movement of the blower; jets in relation to the surface to be cleaned is cll'ected by the pressure of the steam or other blowing medium discharged from the jets. To thisend the invention consists in theconstruction as hereinafter set forth.

In the drawings:

Figure 1 isv an elevation showing the )lower as applied to a boiler;

Figure 2 is .a longitudinal I section through the motor-and steam supply connection;

Figure 3is an endelevation.

My ii'nproved construction is applicable to various types of boilers but is specifically shownas applied-within smoke-boxes of adjacent boilers of a battery.

A and A are the adjacent boilers having he smoke boxes B and B, with which the fines passing throughqthe boilers are connected. C is a steam conduit or header which extends across the space between the smoke-boxes and into. the same, passing through the several compartments of each be); and'being provided withsuitable laterally-extending blower tubes D. E is a cylinder arranged centrally of the space between the boilers, and F is-a piston w-ithin the cylinder E which is mechanically con;v

nected to the oppositely. extending sections of the header G. The piston divides the cylinder into two chambers which are respectively in communication with the sections of the header. In the specific construction shown the piston is hollow and has a central division wall F which separates the space into two chambers respectively communicating through ports F with the chambers of the cylinder. Each end of the piston is provided with a threaded socket F" and the headers are correspondingly threaded and engaged with said sockets.

The steam or blowing medium is applied to the cylinder E alternately at opposite ends thereof. G is the supply conduit and H and H. are branch conduits connected therewith and loading to the opposite ends of the cylinder. I is a threeway valve located at the junction between the conduits G, H and H and the arrangement is such that by adjusting said valve the steam may 1919; Serial No. 362296;,

bepassed alternativelyto the two branches.

With the construction as thus far describedit willbe evident that wheirsteam is admitted to one end of the cylinder IE, it will pass into the chamber within the piston-and-into the header C which isconnected thereto. At the sametiine, tl'ie-pressureact ing against the piston will force the same to the opposite; end of the cylinder. Thus whilesthesteam is. being: discharged from the tubes D, said tubes will bemoved across the ends. of: :the, -flues and will successively clean the same. iVhen the piston has com: pleted itstrarel, by reversingthe valve 1 steam will be cut off from the first endoftthe cylinder and will beadmitted to the opposite end thereof. This wilhcausea discharge of steam through the opposite, section of the header and will alsocause the-reverse-movement of'tl e pistonv so that. the header and the jet tubes'connected-thereto will be moved across the ends ofvthe fines. This operation may' be repeatedas longas' necessary in order to effect a thorough cleaning of the fines. It is, however, desirable to retard the move ment of the pistonto as to permit the jets to remain for short interval in registra tion with each otlthe SUQCQSSlVB fines. This I. haveiprovided for by forming; preferably integra th h y er, E, a. pmallelry-l: inder J in which is placed. a piston K con nected by the piston rod L with an arm M clamped, or otherwise secured, to one section of the header. The opposite ends of the cylinder J are connected with the opposite ends of a by-pass conduit N and a valve 0 in this conduit may be adjusted to variably restrict the same. The cylinder J is filled with oil or other liquid and will therefore operate as a retarding device for the piston F. By adjusting the valve 0 the speed of movement may be regulated to that which is best suited for the cleaning operation.

lVhat I claim as my invention is:

1. In a boiler cleaner, the combination with a pair of blowers, of oppositely-extend ing headers for said blowers movable to shift said blowers transversely to the direction of their discharge and connected to each other, and a stationary header with which said movable headers are telescopically engaged permitting the reciprocation thereof while maintainin the supply of the blowing medium.

2. I11 a boiler cleaner, the combination with a pair of blowers, of aligned headers for .said blowers movable to shift said blowers transversely to the direction of their discharge and connected to each other, a stationary header with which said movable headers are telescopically engaged, and a piston connected with said movable headers and actuated by the pressure of the blowing medium to reciprocate said headers.

3. In a boiler cleaner, the combination with a pair o't-boilers and smoke boxes there for, of blowers arranged in said smoke boxes and movable in a plane transverse to the direction of discharge, aligned headers extending out from said smoke boxes and connected to each other, a stationary header in the space between said smoke boxes with which said movable headers are telescopically engaged, and means operated by the pressure oi the blowing medium within said. station ary header for reciprocating said movable headers- 4. In a boiler cleaner, the combination of a, cylinder, a piston therein, aligned headers mechanically connected with said piston and in communication with the chambers upon opposite sides thereof, and means for supplying the blowing medium to said cylinder alternately upon opposite sides of said piston.

5. In a boiler cleaner, the combination of a cylinder, a piston therein, headers connected to said piston and passing out through opposite ends of said cylinder, said headers being in communication respectively with the chambers on opposite sides of said piston, means for supplying the blowing medium to said cylinder alternately upon opposite sides of said piston, and means for retarding movement of said piston under the pressure of said blowing medium.

6. In a boiler cleaner, the combination of a cylinder, a piston therein, a pair of aligned headers connected to said piston and extending out from the opposite ends of said cylinder, said headers being respectively in communication with the chambers on opposite sides of said piston, means for supplying the blowing medium to said cylinder alternately on opposite sides of said piston, a cylinder arranged parallel to said first-mentioned cylinder, a piston therein, a connection between said piston and one of said headers, a by-pass establishing communication between the op posite ends of the last-mentioned cylinder, and means for variably restricting said bypass.

7. In a boiler cleaner system, the combination with a plurality 0t boilers to be cleaned, of a plurality of reciprocating headers for cleaning said boilers, and a single cylinder mechanism arranged between said boilers and operatively connected to said headers for actuating said headers simultaneously.

8. In a boiler cleaner, the combination with a reciprocatory blower header, of a cylinder into which said header is extended, and a piston in said cylinder for actuating said header, said piston having a fluid inlet for the header, said inlet opening into the cylinder at the side of the piston from which said header projects.

9. In a. boiler cleaner, the combination with a movable blower element adapted to discharge a cleaning fluid during its movement for cleaning parts of a boiler, o't' means tor regulably retarding the movement of said blower element for obtaining a predetermined vclocity of travel of the blower element whereby an accurate predetermination ot the period of cleaning fluid discharge upon a given surface of the boiler is obtained.

In testimony whereof I a'itix my si nature \VILLIS P. THOMAS. 

